US History Timeline 1800-1876 By ecargeoz 1800 The US capital moved from Philadelphia to Washington DC 1800 Census in America 1801 Thomas Jefferson was elected third president 1803 The Louisiana purchase 1804 Start of the Lewis and Clark Expedition 1805 Jefferson's second Inauguration 1809 James Madison was elected as the fourth president 1812 War of 1812 1813 Madisons second inauguration 1814 The treaty of Ghent 1817 James Monroe was elected as the fifth President 1819 Spain agrees to cede Flordia to the US 1820 The Missouri Compromise 1821 Monroe's second inauguration 1823 Continental congress adopts the articles of confederation 1825 John Quincy Adams is elected as the sixth President 1828 US constitution goes into effect 1829 Andrew Jackson was elected as the seventh President 1830 President Jackson signs to Indian removal act 1833 Jackson's second inauguration 1836 Texas declares their independence from Mexico 1836 The Alamo 1837 Martin Van Buren is Inaugurated as the eighth President 1841 William Henry Harrison was Inaugurated as the ninth President 1841 William Dies a month lated and is succeeded by his vice president John Tyler 1845 James Polk is Inaugurated as the eleventh President 1846 The start of the Mexican War 1860 Abraham Lincoln was elected president 1861 Te civil war between the North and the South 1861 The Battle of Gettysburg is fought 1870 The 15th Amendament 1871 The great Chicago fire 1873 The panic of 1873 a financial crisis that caused an economic depression 1875 The Civil Rights Act 1875 Vice President Wilson dies 1875 Resumption Act 1876 Colorado becomes the 38th State 1876 Battle of Little Bighorn